Search found 2684 matches

by e-beach
Apr 08 2020 10:14pm
Forum: General Discussion
Topic: Just had an earthquake in Los Angeles
Replies: 102
Views: 11553

Re: Just had an earthquake in Los Angeles

Yes, that would be the Northridge 1994 quake. It was a deadly quake, but caused a lot of monetary damage as well.
by e-beach
Apr 07 2020 11:58pm
Forum: General Discussion
Topic: Just had an earthquake in Los Angeles
Replies: 102
Views: 11553

Re: Just had an earthquake in Los Angeles

I have never felt an earth quake, ...... Depends on how close you are to the epicenter. If you are close to the epicenter, it feels like you are riding a jackhammer. When the 1994 earthquake ripped under my beach front apartment building the floor was whipping up and down like a trampoline. I could...
by e-beach
Apr 07 2020 11:22pm
Forum: General Discussion
Topic: Legends dropping like flies
Replies: 335
Views: 55239

Re: Legends dropping like flies

by e-beach
Apr 03 2020 11:10pm
Forum: Items Wanted
Topic: Spot welder
Replies: 2
Views: 128

Re: Spot welder

Start here and see what it does for you.

viewtopic.php?t=89039

:D :bolt:
by e-beach
Mar 26 2020 9:30pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Off-road ebike swing arm setups
Replies: 11
Views: 763

Re: Off-road ebike swing arm setups

speedmd wrote:
Mar 26 2020 9:07pm
Don't let anyone tell you what material to make frames out of. .................used plywood as the main structural member h (F) olding the wings with near zero issues. .........
The Marines’ Plywood Supply Drone Is Undergoing Flight Tests
by e-beach
Mar 26 2020 9:50am
Forum: Alternative Energy
Topic: Under discharge 1 cell went low
Replies: 1
Views: 181

Re: Under discharge 1 cell went low

We will need a lot more information to help with that question, but 1 cell going low usually means you have 1 weak cell.

To post pictures keep the file size of the picture under 512k so you can post it.

:D :bolt:
by e-beach
Mar 25 2020 7:17pm
Forum: E-Bike Technical
Topic: Controller Trips under load
Replies: 30
Views: 489

Re: Controller Trips under load

amberwolf wrote:
Mar 25 2020 6:41pm
......and refers to the time in seconds (s) that much current is allowed. ;)
:oops: :lol:
by e-beach
Mar 25 2020 7:05pm
Forum: E-Bike Technical
Topic: Controller Trips under load
Replies: 30
Views: 489

Re: Controller Trips under load

A few things, Your battery seems to be charging and balancing to the 3.3 nominal voltage (+ or -) of LiFePO4. Full charge is 58.4v. Your BMS is a Best Way Protection Board number 013A (BWPB-013A). I can not find exact data on that board, although it seems to be set at the factory to certain paramete...
by e-beach
Mar 25 2020 2:59pm
Forum: E-Bike Technical
Topic: Controller Trips under load
Replies: 30
Views: 489

Re: Controller Trips under load

The link you showed says 15S. Not 16S. Their is a difference.
Golden Pic.JPG
Golden Pic.JPG (96.14 KiB) Viewed 120 times
What do you have, 15S or 16S?

:D :bolt:
by e-beach
Mar 25 2020 1:48pm
Forum: E-Bike Technical
Topic: Controller Trips under load
Replies: 30
Views: 489

Re: Controller Trips under load

Hello and thank you all for you input! ........Cell dimensions, 16 each=> 18mm X 65mm X 130mm, Prismatic LiFePO4 cells........... Are you saying you have 16s batteries? 16s LiFePO4 fully charged is 58.4v. (16 x 3.65v = 58.4v) If your LVC is say, 3v per cell, that would be a 48v trigger from your bm...
by e-beach
Mar 23 2020 8:23pm
Forum: EV Business World
Topic: ES Investors Club
Replies: 269
Views: 54948

Re: ES Investors Club

In the USA, stocks will be down until about the end of summer.....then it is a buyer market. They will go up a bit, then down a again. but after that it is buy and hold time. Like 5 to 10 year holds and all will look rosy again.

:D :bolt:
by e-beach
Mar 21 2020 6:11pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Off-road ebike swing arm setups
Replies: 11
Views: 763

Re: Off-road ebike swing arm setups

Did you only mean for those who own stealth bomber's or anybody with a full suspension e-bike?

:D :bolt:
by e-beach
Mar 19 2020 7:28pm
Forum: E-Bike Non-hub Motor Drives
Topic: Very short range from battery, trying to diagnose
Replies: 19
Views: 760

Re: Very short range from battery, trying to diagnose

One can say that the battery is fine, but unless a proper testing methodology is used to determine proof positive that it is fine, there is no way to tell for sure. The only way to track down the problem is to do a proper process of elimination. The battery might take a full charge but still not be ...
by e-beach
Mar 19 2020 11:58am
Forum: E-Bike Technical
Topic: Controller Trips under load
Replies: 30
Views: 489

Re: Controller Trips under load

I agree, more information is required. As for the BMS shutting everything down the OP did mention a hard reset. However he didn't mention if the CA, or the whole system stops working. Back to more info. To AW's post, does all power to the whole system get cut off or just the power to the wheel? I st...
by e-beach
Mar 19 2020 10:36am
Forum: E-Bike Technical
Topic: Phase Amps vs Battery Amps
Replies: 18
Views: 448

Re: Phase Amps vs Battery Amps

It means happy electricity to you.

:D :bolt:
by e-beach
Mar 19 2020 9:25am
Forum: E-Bike Technical
Topic: Phase Amps vs Battery Amps
Replies: 18
Views: 448

Re: Phase Amps vs Battery Amps

john61ct wrote:
Mar 19 2020 8:43am
just a useless and annoying argument as if this is a court of law try actually adding some value to the community instead of wasting our time
Who are you referring to with that snappy comment?

:D :bolt:
by e-beach
Mar 18 2020 11:47pm
Forum: E-Bike Technical
Topic: Phase Amps vs Battery Amps
Replies: 18
Views: 448

Re: Phase Amps vs Battery Amps

....so yes, phase wires do "have amps". ;) I agree, when the motor is rotating. However, to say a motor has phase amps that horse power can be derived from is not accurate. The HP doesn't come from the phase wires. It comes from the motor, controller, battery combination while under power. On their...
by e-beach
Mar 18 2020 10:08pm
Forum: E-Bike Technical
Topic: Phase Amps vs Battery Amps
Replies: 18
Views: 448

Re: Phase Amps vs Battery Amps

Either running or not. Batteries don't push their current while not connected to a load. That is what makes them batteries. If batteries pushed their current while not connected, then they would be useless as batteries. They would discharge into the atmosphere. And, they don't push their current whi...
by e-beach
Mar 18 2020 10:01pm
Forum: E-Bike Technical
Topic: Controller Trips under load
Replies: 30
Views: 489

Re: Controller Trips under load

OK, what you are looking for is accuses to the since wires of the bms. By skillfully metering the wires you can meter the cell groups. This is the info we need to start the process of elimination.

:D :bolt:
by e-beach
Mar 18 2020 8:11pm
Forum: E-Bike Technical
Topic: Phase Amps vs Battery Amps
Replies: 18
Views: 448

Re: Phase Amps vs Battery Amps

Example, 72v battery, pushing 250 battery amps, 450 phase amps, would you calculate the total power with phase amps or battery amps? Battery amps = 72v x 250 = 18kw (24hp) Phase Amps = 72v x 450 = 32kw (43hp) ....... Phase wires don't have amps, unless you are using regenerative breaking. Upon brea...
by e-beach
Mar 18 2020 4:15pm
Forum: E-Bike Technical
Topic: Controller Trips under load
Replies: 30
Views: 489

Re: Controller Trips under load

Before you do anything with the controllers, lets make sure your battery is working as it should. It could be that you have a bad cell in one group that is causing LVC. Or you are drawing too many amps and the BMS is cutting off that way. Do your best to dig up the spec on your magic pie and post th...
by e-beach
Mar 18 2020 1:18pm
Forum: E-Bike Technical
Topic: Controller Trips under load
Replies: 30
Views: 489

Re: Controller Trips under load

I am going to say that I don't think it is your new controllers, but your battery or bms.

What is your BMS rated for? How many amps? Your new 48v 1800w controllers may be triggering a LVC due to battery sag.

:D :bolt:
by e-beach
Mar 17 2020 8:56pm
Forum: General Discussion
Topic: 80th Birthday
Replies: 14
Views: 389

Re: 80th Birthday

A very HAPPY 80th!
by e-beach
Mar 17 2020 1:20pm
Forum: E-Bike Technical
Topic: Phase Amps vs Battery Amps
Replies: 18
Views: 448

Re: Phase Amps vs Battery Amps

Question regarding e bike power, the controller has phase amps and battery amps,..... Actually the controller doesn't have any amps on it's own. It converts the usable current your battery can deliver. And it will do so up to something around what it is rated for. The amp hours in a battery are wha...
by e-beach
Mar 16 2020 6:57pm
Forum: E-Bike Non-hub Motor Drives
Topic: Very short range from battery, trying to diagnose
Replies: 19
Views: 760

Re: Very short range from battery, trying to diagnose

First thing I would do is let the battery sit on the charger for a good long time to make sure that it is not out of balance. One low cell could cause a cell group to go low enough for LVC. Leave it on the charger for a full 12 hours and see if that makes a difference. While that is happening, caref...